Alltrade 648610 Kit 23 Double Flaring Tool Set For flaring automotive tubing. Precisely flares copper, aluminum and mild steel tubing up to .040-in wall thickness Flares 3/16-in, 1/4-in, 5/16-in, 3/8-in, 7/16-in, 1/2-in and 5/8-in sizes Heat-treated clamping bar and yoke assembly Tool set for flaring automotive tubing Precisely flares aluminum, copper and mild steel tubing up to 0.04-Inch wall thickness Heat treated clamping bar and yoke assembly Create single or double flares Kit 23 includes flares sizes 3/16-Inch, 1/4-Inch, 5/16-Inch, 3/8-Inch, 7/16-Inch, 1/2-Inch and 5/8-Inch